Tool for locking nuts.



W. E. WILUAMS.

TOOL FOR LOCK ING NUTS. APPLICATlON FILED JAN.21, 191s.

Patented Apr. 8,1919.

w nina'ivi seasons WILLIAMS, or'enioiieo, "I LINOIS.

j TooLToIt-LooKmG minis.

i Specification of Letters latent.

Patented; Api'. 8.1919.

Application filed Ja uar 21 1916. Serial No. 73,316.

To all 107101122125 may concern. I

Be it known that I, WILLIAM ERAs'rUs lVILLLurs,v a citizen oli the United States, and a resident of Ghicago,county ofCook, and State of Illinois, have invented a new and useful Improvement in Tools for Locking Nuts, of which. the following is a. speeification.

The object of my invention to to provide the cheapest and most expeditious possible method and a tool therefor with which to lock nuts on bolt ends against loosening. I

do this by cutting out or swaging with a I tool a small section or segment or lip from the bolt end out into or over the edge of the threads of the nut, thereby lockingthe nut from becoming loose. Reference will be had to the accompanying drawings in which-' I f Figure 1 is an elevation of a bolt partly in section locked by my method and tool.

Fig. 2 is a plan view of the devices shown in Fig. 1.

Fig. 3 is a in Fig. 5. v

Fig. 4: is a: vertical sectional elevation of one form of my tool in position of locking a nut by my method. I

Fig. 5 is an elevation of a modified form of my invention.

Fig. 6 is an elevation of another modified form of the invention. v

Fig. 7 is a section on line 7- 7 of Fig. 4.

plan view of the devices shown Fig. 9 is a. section on line 9-9 of Fig. 6. Fig. Fig; 4.

Fig. 11 is a plan of a hexagon nut upon a square nut. 1

Fig. 12 is a bottom end view of my tool as shown in Figs. 5 and 6 when the socket end has been shaped to fit over both square and hexagon nuts.

a nut 3 and binding I accomplish. this method withmy tool" which is composed ofa chisel 6 provided with a cutting point 7 and held in sliding segment or lip, thus. making 10 is a section on. line l0--10 of contact within a holder or handle 8. The lowerend of the holder terminates in a socket QJadapted to fit loosely over the nut. Above" the socket 9 there/is a secondary socket 1O adaptedto engagethe bolt end- In Figsfll and 10 a spring 11 is provided to hold the chisel 6 against rebound when it is being driven witha hammer-in cutting the lip or segment. Y

In use the tool is placed over thenut and.

bolt end which constitute: the structuretobe 7 operated upon and the chisel isdrivjen" down with a] hammer or by any suitablemeans during which the chisel point 7 cuts out and bends over the segment or lip 19 and coinpresses: the metal outward at the root. of the the bolt tight inthenut and locking the nut. a

In Fig. 5 I provide a hand lever IQ'hinged.

at'1 3 to the top of the holder or handle and i this lever'is grasped by the hand 15 ofthe;

operator, thereby binding the lever in contact with the chisel along thesu'rface 14.

In Fig. 6 both the spring 11 andlever 12 are want ng andthe finger-s 16 of the hand In all three of the forms as shown in Figs. 4

1'7 of'the operator holdsythe chisel in place. i

5 and 6 the fingers may be used to hold the on the surface 22 of the chisel;

In Figs. 5 and 6 I provide a shield 01 guardplatePIS to protect the hand, of-the chisel when desired by applying the fingers operator fronrfalse blows of the hammer Fig. 8 is a section on line 88 of Fig. '5.

when striking the end of the chisel:

'square -andhexagon nuts are 'approxi-.

mately the same size as relates to theirpar- 3. By making the socket end of my tool as is shown in Fig. 12 with notches 21 adapted to go over the corner of hexagon nut the sametoolinay be used on both square and p "hexagon nuts. In the drawings 1 indicates an ordinary .Nuts after having been locked by my method may be easily screwed up tighter when occasion requires and again locked with my tool driving the'chisel in the same or ajnew place on the bolt end. 'IVhen de- 7 10'5 screwed off with a wrench and. in doing this sired the nut after being locked may be ice the lip or segmental-9 is bent-backward more i or less upward from its'root home "from whence it came and the outer end of j breaks ofl more or less depending on the nature of the metal of the bolt. Neither the threads of the nut'nor those on the-bolt end are appreciably injured by reason of the taking mi of a nut after it has been.

locked by my method, and the nut is easily screwed on again and may be relocked in the same manner as before, either in the same or a new place on the bolt end. The protruding end of a bolt serves no useful purpose that it will not serve after one or two lips or segments have been made in it by my method of locking the nut.

In cases where the end of a bolt does not protrude beyond the face of the nut I lock the nut just the same way by driving the chisel end down into the bolt end, thus swaging out a segment tightly into the nut threads, making such a tight fit as will lock the nut from coming loose.

An operator in looking nuts with my method and tool may do so with the exercise of little or no skill and with rapidity and at the same time do efficient work.

What I claim is 1. The combination with a guide member having an extension for laterally engaging thenut and bolt structure vto be operated upon and'maintaining the distance of the member from the axis of the bolt, and fur- ,ther having a way at one side of the bolts axis and approximately parallel thereto when the member is in operative position, of a cutter movable in said way toward the end of the bolt and beveled to a cutting edge at the side nearest said axis and lying between the latter and the surface elements of the bolt whereby the forcible advance of thecutter may force outward a narrow nutlocking segment of the peripheral portion of the bolt.

2. The combination with a guide structure adapted to fit over the end of a bolt and the nut thereon, of a chisel sliding in said structure parallel to the axis of the bolt, having its bevel turned from the said axis and its cutting edge at some distance therefrom, whereby the advance of the chisel may cut-and force outward from the end portion of the bolt a relatively narrow and shallow segment.

3. The combination with a structure adapted to be passed over the end portion of a bolt bearing a nut and provided with a way for guiding a sliding chisel, of a -frictionally held chisel lying in said way, of a width equal to a small portion of the bolts diameter and having its cutting edge between the axis and periphery of the bolt, whereby forcible advance of the chisel may cut and bend outward from the end portion of the bolt a narrow and shallow segment.

4t. In devices of the class described, the combination with a guide member having a port-ion to be encircled by the hand oi? the user and provided with a way for a chisel, of a reciprocating chisel mounted in said way, with its cutting edge at one side of the .axial line of thebolt, and arranged to be pressed against the side of said way by the hand grasping said member.

In devices of the class described, the combination with a guide member, to be encircled by the hand of the operator, for positioning a chisel by lateral contact of its lower end with the nut and bolt structure to be operated upon, ot' a reciprocating chisel mounted in said member and by it guided against the peripheral portion of the bolts end when advanced by hammer blows, and a guard fixed to said member above the place of the grasping hand, substantially as set forth.

Signed in Chicago, in the State of Illinois, and the county of Cook this 17th day of January 1916.

VILLIAM ERASTUS WILLIAMS.

Witnesses N. P. \VILSON, R. F. MoMAHoN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). C, 

